The victory left Bayern level on points with Bundesliga leaders Borussia Dortmund after they were held to a 2-2 draw by Eintracht Frankfurt, something the defending champions were well aware of before their clash at the Volksparkstadion.

"It was a very important game," said Heynckes. "We knew the result from Dortmund before, but we couldn't bring everything we wanted on the pitch.

"In the end it was a very tight game."

Meanwhile, Hamburg midfielder Jung questioned the referee's decision to show him a straight red card for a challenge on Kingsley Coman.

He told ZDF: "It was not my intention to hurt a player and hurt my team. With a man down, it is hard.

"It can be a card, but I think in the situation and the course of the game, it was not necessary."